DTC U01BD-87: Lost Communication with DC/DC Converter Control Module "C" Missing Message [09/2022 - ]: Description
WARNING: This page is about a different car, the 2025 Toyota Corolla, 2024 Toyota Corolla, and 2023 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the DC/DC converter assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | Note |
|---|---|---|---|---|---|---|
| U01BD-87 | Lost Communication with DC/DC Converter Control Module "C" Missing Message | A CAN communication error between the DC/DC converter and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system | Does not come on | Master Warning: Comes on |
SAE Code: U01BD |